A cynic might say no, not at all:
Intellectual debate often appears more as a kind of decoration rather than a substantive force in politics and policy. Politics appears to be more about politicians seeking to win votes and interest groups who can supply the means to win votes (either money or grass-roots muscle). Whichever groups have power hire or find intellectuals to push their line. There is always an ample supply of intellectuals and academics who will defend any position (they may or may not be sincere). The public can’t distinguish valid from invalid arguments so all the debate just cancels out: the battle of ideas merely reflects the balance of power.
A less cynical view ( and closer to mine) might be that intellectuals have influence but only if they are sufficiently united on some issue. There are some ideas that are so powerful that it is almost impossible for competent people to deny them. So you simply won’t get an adequate supply of experts willing to oppose them. Also the very existence of experts from different backgrounds and politics backing the idea will lend it credibility. Even quite powerful interest groups can do relatively little.
Two examples:
1)Evolution: There is a massive,well organized movement to which wants to take evolution out of public schools and replace it with creationism. If polls are to be believed a substantial chunk of the population supports them. Despite this there are hardly any schools where creationism is taught and ,though some schools might not teach enough evolution, no school where teaching evolution is expressly forbiden. This is because it is almost impossible for serious intellectuals whatever their politics to oppose evolution.
- Free trade: Though there is less of a consensus here, there is virtual unanimity among economists that free trade is usually a good thing and a substantial unanimity among commentators and editorialists. This must be one of the few issues where the NYT agrees with the WSJ. So despite meagre support for free trade among the public and lots of powerful interest groups with a reason to oppose it the US is moving slowly in the direction of ever freer trade.
If my basic hypothesis is right then intellectuals should spend less time fighting other intellectuals on issues which they will never resolve (like abortion) and more time trying to find areas of agreement where they can usefully present a united front and influence policy. In other words the important battle is not so much between different sets of intellectuals but between intellecuals on the one hand and interest groups and the general public on the other. Intellectual trench-warfare will only mean that the issue will be decided by the balance of power between interest groups. Intellectual consensus can be a powerful independent force in its own right.
Without wishing to start debates on the specific issues let me suggest three potential areas where I suspect intellectuals of different political views have some reasonable grounds for reaching a consensus.
1)Vouchers for school education (especially for poor parents): I tentatively support them and so do lots of inner-city parents (but not the general public). I already see some straws in the wind to indicate that some people on the left and centre are becoming more sympathetic (eg a long story in Salon which supported Edison in its battle in San Franscisco)
2)Cost-benefit analysis for regulation: In fact there already exists a joint effort by AEI and Brookings which is a good example of the kind of consensus-building I am talking about.
- Ending the war on drugs:
There is already lots of support on both left and right for this one.
What do you think? I would like to know your thoughts on the general question as well as my ideas. I probably won’t have the time to write too much in this thread but I will try to read everything.